Loomis Study- The Last of Face Studies... on that Page

These were some of the profile heads on that page, in which Loomis encourages you to test what head type these heads are.
It was an interesting exercise in which I which I was able to use an array of mark-making techniques to learn from them. But now I head onto the next page of the book. I have also realised that I'm about a third of the way through the book. So I'm hoping for some techniques to draw other part of the body, like the hands, rather then more heads.